Larson

From The Stargate Omnipedia

Sergeant stationed aboard the U.S. Air Force vessel Prometheus. Larson reported the news that the Goa'uld-possessed Robert Kinsey had escaped his guards and was now roaming free aboard the ship -- likely attempting to reach the ring room.

KEY EPISODE

Full Alert - Larson hails the Prometheus bridge and informs his superior that the Goa'ulded Kinsey has escaped.